Does anyone know if a HD2 running WM6.5 supports 64GB microSDXC cards? As in has anyone tried it?

YES you absolutely can run a 64GB microSDXC in an HD2. At least I can verify that with WM6.5.5. I am using the SanDisk 64GB class 10 micro SDXC card in my HD2. The phone does read the full 64GB and can access it all. You do have to reformat it first as it is in exFAT which can't be read. It needs to be formatted in FAT32. The kicker with that if you try to format in your PC, MS has deemed that FAT32 is 32 GB max and if you use the inbuilt format in any version of Windows, it will only format it in exFAT or NTFS. I also tried using a program called SDFormatter but it would not allow me to format in FAT32 either. There is a way to do it from a DOS command but... I ended up using EaseUS Partion Master Home Edition, which is a free program. It worked a charm, and was very fast as well, Then I xxcopy'ed my SD card contents onto the new 64GB card and installed it in my phone. Both my WM 6.5.5 and my SD Android 2.2 are working perfectly, though the Android may be just a bit slower now and then. Both my 32GB and my 64GB are class 10s. I use XXcopy to keep a backup of my SD card on my computer, just in case. I update the backup every couple weeks or if I have updated anything significantly (which seems to be all the time with Android apps). I am running Core Cell Evo v4.1 and CoreDroid v.08. Here are the links to Partition Master http://www.partition-tool.com/download.htm and XXcopy http://www.xxcopy.com/xcpydnld.htm

Windows mobile doesn't recognize NTFS (should have been an add-on, if only developpers hadn't stopped producing for this platform), and Android is Linux (Debian) based, so would rather use ext2 / ext3, and of course, FAT and FAT32, that fortunately stay the common links between all worlds...

Edit : Wait, is your card really NTFS formatted ? Windows should automatically choose FAT32 when formatting up to these sizes. I hadn't heard of Windows Mobile being able to read it. It can't read an USB disk in NTFS from Cotulla or Zeno Sloim USB host driver, for instance.

I even tried to format EXFAT32 on my HD2, with no luck. So FAT 32 only, but din't lost room in the process of formatting 64 GB in FAT32. My 32 GB card was almost full, and I earned a full 32 GB storage, so there's no visible cluster waste.

It's even much faster than the old 32 GB card (I bought one of the first that came available form Sandisk), despite the larger volume and allocation tables.

Can i ask you something? I want to buy a new micro sd for my HD2 EU 512 but i read there is compatibility promlem for UHS. Can i use this card "Sandisk 32GB Android Ultra Micro Class 10 SDSDQUA-032G-U46A" with HD2?

Can i ask you something? I want to buy a new micro sd for my HD2 EU 512 but i read there is compatibility promlem for UHS. Can i use this card "Sandisk 32GB Android Ultra Micro Class 10 SDSDQUA-032G-U46A" with HD2?

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